docs: def get_rollout_from_id(self, rollout_id):
      """ Get rollout for the provided ID.
  
      Args:
        rollout_id: ID of the rollout to be fetched.
  
      Returns:
        Rollout corresponding to the provided ID.
      """
      layer = self.rollout_id_map.get(rollout_id)
  
      if layer:
        return layer
  
      self.logger.error('Rollout with ID "%s" is not in datafile.' % rollout_id)
      return None